Random access point (RAP) formation using intra refreshing technique in video coding
AssigneeSony Interactive Entertainment Inc.
InventorHung-Ju Lee
Life of this patent
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Abstract
A random access point is generated in a stream of coded digital pictures containing a plurality of predictive coded frames that have two or more predictive coded frames in which one or more subsections of each of the two or more predictive coded frames are intra coded. Information is added to a stream of digital pictures that identifies for a decoder which of two or more predictive-coded frames in the stream have intra-coded subsections at different portions that can be combined to form a patch frame.
Claims18
A method for generating a random access point in a stream of coded digital pictures containing a plurality of predictive coded frames, the plurality of predictive coded frames having two or more predictive coded frames in which one or more subsections of each of the two or more predictive coded frames are intra coded, the method comprising:
- adding information to a stream of digital pictures, wherein the information identifies for a decoder which two or more different predictive-coded frames in the stream having intra-coded subsections at different locations to combine to form a patch frame, wherein adding the information to the stream includes adding a bit to one or more reserve fields in the bit stream to signal the decoder that certain subsections of certain frames in the stream are intra-coded.
An apparatus for generating a random access point in a stream of coded digital pictures containing a plurality of predictive coded frames, the plurality of predictive coded frames having two or more predictive coded frames in which one or more subsections of each of the two or more predictive coded frames are intra coded, comprising:
- a processor;
- a memory coupled to the processor;
- computer-coded instructions embodied in the memory and executable by the processor, wherein the computer-coded instructions are configured to implement a method for generating a random access point in a stream of coded digital pictures containing a plurality of predictive coded frames, the plurality of predictive coded frames having two or more predictive coded frames in which one or more subsections of each of the two or more predictive coded frames are intra coded, the method comprising:
- adding information to a stream of digital pictures, wherein the information identifies for a decoder which two or more different predictive-coded frames in the stream having intra-coded subsections at different locations to combine to form a patch frame, wherein adding the information to the stream includes adding a bit to one or more reserve fields in the bit stream to signal the decoder that certain subsections of certain frames in the stream are intra-encoded in a certain pattern.
A non-transitory computer-readable medium having embodied therein coded instructions executable by a computer processor, the coded instructions being configured to implement a method for generating a random access point in a stream of coded digital pictures containing a plurality of predictive coded frames, the plurality of predictive coded frames having two or more predictive coded frames in which one or more subsections of each of the two or more predictive coded frames are intra coded, the method comprising:
- adding information to a stream of digital pictures, wherein the information identifies for a decoder which two or more different predictive-coded frames in the stream having intra-coded subsections at different locations to combine to form a patch frame, wherein adding the information to the stream includes adding a bit to one or more reserve fields in the bit stream to signal the decoder that the certain subsections of certain frames in the stream are intra-coded.
Dependencies are inferred from the claim text.